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Schedule of Intangible Assets (Details) - USD ($)
$ in Thousands
 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]      
Total net amortized intangible assets $ 1,190    
Amortization (118) $ (100)  
Total net amortized intangible assets 1,072    
Total net intangible assets 3,627    
Total net intangible assets 3,509    
NLEX [Member] | Trade Name [Member]      
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]      
Unamortized intangible assets 2,437   $ 2,437
Customer Network [Member] | HGP [Member]      
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]      
Total net amortized intangible assets 114    
Amortization (13)    
Total net amortized intangible assets 101    
HGP Trade Name [Member]      
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]      
Total net amortized intangible assets 746    
Amortization (51)    
Total net amortized intangible assets 695    
Customer Relationships [Member] | NLEX [Member]      
Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]      
Total net amortized intangible assets 330    
Amortization (54)    
Total net amortized intangible assets $ 276